11-03-2011, 04:17 PM
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I agree with what others have mentioned about "algae" fish waiting until there is algae. Most will learn to eat sinking prepared foods, but some will not do so in a new environment and may starve to death. Otos and Farlowella are especially prone to this.
I never recommend any algae-eating fish solely to eat algae. First, none of them will eat all types, and many (especially in the pleco group) can produce quite a lot of waste. If you like the fish as a fish, fine; the "algae eating" is a plus. But never buy a fish solely to eat algae.
Snails, particularly Malaysian livebearing and pond or acute bladder types, are ideal in planted tanks. The benefits of these cannot be understated. They will deal with some common algae.
Now, having said all that, there are several unique fish that can add interest to an aquarium and assist in the algae department. Bristlenose pleco is one, Twig Catfish (only in soft water), Whiptail Catfish, Otocinclus and many livebearers are some others. With all these we are talking common green algae (and diatoms, the brown algae that may occur in new tanks but shouldn't later on). None of these will touch brush algae which is often the most difficult, or hair algae.
Last edited by Byron; 11-03-2011 at 04:20 PM..